#!/bin/sh
set -eu

do_tree() {
	tree=$1
	manpath=$2
	echo "Copying manuals for ${tree}..."
	git ls-tree $tree | while read -r mode type hash name; do
		if [ $type != blob ]; then
			continue
		fi
		case "$name" in
			(README.7)
				continue
				;;
			(*.[1-9])
				section=${name##*.}
				mkdir -p /var/www/man/${manpath}/man${section}
				git cat-file $type $hash \
					>/var/www/man/${manpath}/man${section}/${name}
		esac
	done
	if test -d /var/www/man/${manpath}; then
		makewhatis /var/www/man/${manpath}
		if ! fgrep -q ${manpath} /var/www/man/manpath.conf; then
			echo $manpath >>/var/www/man/manpath.conf
		fi
	fi
}

do_tree HEAD HEAD

repo=${PWD##*/}
for tag in $(git tag); do
	manpath=${repo%.git}-${tag}
	if ! test -d /var/www/man/${manpath}; then
		do_tree $tag $manpath
	fi
done